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2 Sheets-Sheet I. D. G. HASKINS.

I Gas Stbve. 7 No. 70,432. Patented Nov.- 5, 1867.

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2 Sheets-Slheet 2. D. G. HASKINS.

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a No. 70,432. Patented Nov. 5', I867.

this sta t DAVID G. HASKl'NS, OF OAMBRlDGE. MASSACHUSETTS.

Letters Patent No. 70,432, dated November 5, 1867.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, DAVID G. HASKINS, of Cambridge, in the county ofMiddlesex, and State of Massaehusotts, have invented a new and usefulImprovement in Gas Cooking-Ranges, of which the following is a full,clear, and exact description, reference being had to the accompanyingdrawings, making a part of this specification, in which-- I Figure 1represents a perspective view of a range containing my improvements,with a portion of the outside removed. v

Figure 2 is a view of the rear portion of the same, also with a portionremoved, and

Figure 3 is a plan view of the base or lower portion of the range, andalso avicw of the under side of the upper portion which fits over thebase, representing the two parts as opened.

Similar letters indicate like parts in the several figures.

The object of my invention is to provide a range in which gas isemployed as the fuel for heating, and which shall be capable ofperforming allthe functions required in the various culinary processeson an extended scale, and also be capable of performing only one or-moreprocesses with a minimum expenditure of gas, thereby obviating theexpense of a largeamount of fuel when only a simple process is required;and the invention consists the combination and arrangement of a seriesof ovens or cooking-apartments, a water-back, and aboiler, eachsurrounded, or nearly so, by a double easing through which the productsof combustion are caused to pass from gas-burners placed under openingsproperly arranged on the under side of the base of the apparatus.

To'enable others skilled in the art to make and use my invention, I willproceed to describe the same.

Referring to the drawings, A represents the base or lower portion of theapparatus, of an oblong rectangular shape, and composed of two plates ofsheet metal separated a little distance from each other, so as to leavea space between them, and closed at the sides and ends. At various orconvenient parts of the said base-portion are openings, at a, which maybe of circular or oblong form, in which are fitted tubes, which projecta little below the under surface of the base for the introduction of theburners. These tubes form combustion-chambers, and at or near theirupper ends are provided with holes or tubes which communicate with thespace in the baseportion of the range, and through which the products ofcombustion pass to the chimney or exit flue. The upper ends of the tubesare left open, and are designed to receive a kettle or implement forcooking or boiling, and when not so used they are covered over as usualin ranges of the ordinary construction.

The oblong or flattened tubes b, as seen in fig. 3, communicate with theopenings or spaces S, formed between the ovens or cooking-apartments. 7

B B C C represent cooking-apartments for baking, boiling, roasting, etc.The double partition and spaces a between the two inner and the twoouter apartments on either side are made inclined as shown, for thepurpose of causing the ascending products of combustion to act moreperfectly and thoroughly on the sides of the said apartments, with aview of increasing the heat in the same. One end of the range may form aroasting-oven, and be provided with accommodations for a spit, as seenat B.

The ovens or cooking-apartments are provided'with ledges or cleats, onwhich shelves may'rest. D reprc sents a plate, which is designed to beplaced over the opening in the bottom of the oven. It has another plateattached to its under side by a rod or rods, which additional plate actsas an absorbent and conductor of heat.

It may be removed, and a cooking utensil of any description may befitted in the opening. On the top plate of the ovens are also openings,which may be provided with covers, and in which kettles or othercooking-utensils may be fitted. In the top of the inner ovens orapartments G C are arranged dampers, which cover openings into the fluespace, the said openings being for the purpose of allowing the fumes ofthe articles bcing cooked to passed with the products of combustion.

Over the central portion of the range is placed a vessel or reservoir,D, for containing water, and which has a double casing around its sides,forming a space for the products of combustion, and communicating withthe flue space of the range below. A pipe may be arranged to conduct thesteam to the chimney or other exit flue. It is provided with a suitablecock to draw off the water as required The several ovens orcooking-apartments are provided with suitable doors as shown. The tubesor heating chambers a communicate, by means of pipes or passages 12,with 'the inclined flue spaces s, as shown.

In the rear of the range is a water-back, E, provided like the vessel Dwith a double casing, and surrounded by a flue space through which theproducts of combustion pass to the exit pipe and chimney F, as seen infig. 2. The bottom oftlie water-back E is formed of a curved plate, a,as shown, for the purpose of affording room'to place an additionalburner to heat the same when necessary, or when the 'other part of. therange is not heated. Proper pipes forthe inlet-of'cold and the outlet ofhot water may be attached in the usual manner. The waterback is to bemade of any. materialof suflicient strength to withstand the action ofthe heated water and steam.

It will thus be seen that a variety of processes in cooking may beadvantageously and economically conducted at one and thesame'time, andthat all the heat produced from theburners will beutilized in itspassage to the exit flue. The artielcs will be cooked by radiation ofthe .heat from and not by the direct action of the burning gases. Theproducts of combustion as well 'as the fumes from the cooking articleswill all be carried away from the range to the chimney instead ofescaping into the room, and thus avoid the objections to the gascooking-ranges now in use. By a proper arrangoment of dampers the heatmay be confined to and made to act upon only a portion of the range atone time, thus saving the expense of fuel and wear of the unusedportions of the range. The water-back for. supplying the upper or otherrooms with hot water may be used or not, as desired. Instead of gastheflame of any oil or burning-fluid which may emit a sufiicient amount ofheat may be employed as fuel.

What I claim as new, and desire to secure by Letters Patent, is-

1. I claim the combination of the base A and combustion-chambers a Z:with the ovens or cookingapartments B C, and the interposed inclinedflue space s, as and for the purpose spccified.

2. I claim the combination of the base A and combustion-chambers a b,the ovens or apartments B C, and the reservoir D, as'and for the purposespecified.

3. I claim, in combination with a gas cooking-range constructedsubstantially as described, a water-back, E, as set forth. I

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

DAVID G. HASKINS.

Witnesses:

Jos. H. ADAMS, M. S. G. WILDE;

